make player wobble as he walks

Makefile

@@ -10,7 +10,11 @@ all: win32 win64 linux
 
 love: clean_love
 	mkdir -p build
-	cd src && zip -9 -r ../build/$(name).love .
+	cd src && zip -9 -r ../build/$(name).love . \
+		-x *.tiled-project \
+		-x *.tiled-session \
+		-x *.tsx \
+		-x *.tmx \
 
 win32: clean_windows download-love-win32 love
 	mkdir -p build/win32/$(name)

src/systems/player.lua

@@ -106,8 +106,10 @@ function Player:update(dt)
 
 		if e.acc.x ~= 0 or e.acc.y ~= 0 then
 			e.sprite.variant = "walk"
+			e.sprite.wobble = true
 		else
 			e.sprite.variant = "idle"
+			e.sprite.wobble = false
 		end
 
 		if e.acc.x < 0 then

src/systems/sprite.lua

@@ -39,6 +39,7 @@ function Sprite:draw()
 		if not e.hidden then
 			local variant = sprite.variants[e.sprite.variant or "default"]
 			if variant and e.sprite.frame then
+				local rotation = nil
 				local frame = variant[e.sprite.frame]
 				if not frame then
 					frame = variant[1]
@@ -47,11 +48,17 @@ function Sprite:draw()
 				if e.sprite.flip then
 					sx = -1
 				end
+
+				if e.sprite.wobble then
+					rotation = math.sin(love.timer.getTime()*10)*0.15
+				end
+
 				love.graphics.draw(
 					frame.image,
 					e.pos.x,
 					e.pos.y,
-					0, sx, 1,
+					rotation,
+					sx, 1,
 					sprite.width/2, sprite.height/2
 				)
 			end